The trailer for Netflix’s “The Innocent Man” has arrived. Based on John Grisham’s true crime bestseller.

Netflix will explore murder, corruption, and wrongful convictions in “The Innocent Man,” an upcoming docuseries based on John Grisham’s best-selling 2006 non-fiction bestselling book of the same name.

The six-part series, which launches globally on December 14th, focuses on the controversy behind two killings that occurred in Ada, Oklahoma in 1982 and 1984 – leading to murder charges for four men: Tommy Ward, Karl Fontenot, Ron Williamson, and Dennis Fritz.

The latter two were exonerated in 1999 through DNA evidence with help from non-profit legal organization, the Innocence Project; at the time of his release, Williamson had served 11 years on death row and was five days away from being executed.

Ward and Fontenot, who continue to serve life sentences, maintain their innocence.

The trailer for the docuseries establishes the backstory and controversy surrounding the murders, focusing on the men’s controversial confessions and lack of forensic and physical evidence.